[REF] Packaging: moved all the windows-related files into an unique win32 directory + cleanup
[FIX] config.py: do not use appsdir to define the user's data dir when he has no home directory on unix

Force it to be '/var/lib/(appname)' in this case
[REF] Renamed files whose names contained whitespaces
[REF] setup: cleanup and linting of setup.py, reworked MANIFEST, added requirements.txt
[REF] Debian: renamed debhelpers scripts to not contain openerp in their filenames anymore, removed run_all_with_tests.sh script
[FIX] Debian: updated informations and dependencies, refactored debhelpers scripts to allow easy name change, simplified debhelper rules
[ADD] RedHat: defined the dependencies and added a post-install script to create the odoo user, the odoo configuration file, ...
[REF][FIX]: Windows packaging: lint, cleanup and make it work

setup.nsi: make it build and use postgresql 9.3
win32_se*: lint and simplified
Makefile: only one mode
[REF] Package.py: refactoring including cleanup, lint, and use of docker to test unix releases
[FIX] Windows packaging: correct Makefile.version writing and remove useless lib installation
[FIX] Windows packaging: AGPL license
[ADD] support for canonical urls in technical doc

* canonical_root setting is the path to the root of the canonical sphinx doc,
  if not set no canonical link is generated, must end with "/"
* canonical_branch defines the canonical branch to which to redirect, defaults
  to master

also various side-fixes:

* disabled permalinks in sphinx instead of hiding them via CSS
* improved generation of github links, removed _app global and setting of
  linkcode_resolve in conf.py
Merge pull request #2134 from odoo-dev/8.0-improve-packaging3-sle

v8 packaging by sle